Furniture Design Screw Chair Multifunctional Furniture by Arash Shojaei In nowadays' venturesome life the middle class and the low income part of the society is under the most economical pressure and thus are more interested in simple,cheap and utilized furniture than the elegant designs.More over most of the furniture units are made for single usages which boosts the need of a multiusage product. The main usage of this design is a chair. By displacement of parts of chair that connected with screws, the other usages like table and shelf we could have. In addition, the parts of chair can collect in the box that is the main part of this design.